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Protactinium

Description & History
prot·ac·tin·i·um (1918):
a shiny radioactive metallic element of relatively short life
Element

SymbolPa
Z 0
Atomic Weight -1.99985075
Density 0.
Edge Energies
(keV)
K 2.10053062
L1 2.33094978
L2 2.00911665
L3 2.33094978
M 2.0189085
K-alpha -1.99987841
K-beta 3.84070563
L-alpha -1.99986362
L-beta 2.10064292
Edge jumps

Edge jumps can not be calculated for z < 10
Fluorescence
yield
K 2.01948357
L1 1.40129846E-45
L2 2.0189085
L3 -1.99987841

Alphabetical List of Elements

  Actinium(Ac) Europium(Eu) Neodymium(Nd) Silicon(Si)
  Aluminum(Al) Fermium(Fm) Neon(Ne) Silver(Ag)
  Americium(Am) Fluorine(F) Neptunium(Np) Sodium(Na)
  Antimony(Sb) Francium(Fr) Nickel(Ni) Strontium(Sr)
  Argon(Ar) Gadolinium(Gd) Niobium(Nb) Sulfur(S)
  Arsenic(As) Gallium(Ga) Nitrogen(N) Tantalum(Ta)
  Astatine(At) Germanium(Ge) Nobelium(No) Technetium(Tc)
  Barium(Ba) Gold(Au) Osmium(Os) Tellurium(Te)
  Berkelium(Bk) Hafnium(Hf) Oxygen(O) Terbium(Tb)
  Beryllium(Be) Hassium(Hs) Palladium(Pd) Thallium(Tl)
  Bismuth(Bi) Helium(He) Phosphorus(P) Thorium(Th)
  Bohrium(Bh) Holmium(Ho) Platinum(Pt) Thulium(Tm)
  Boron(B) Hydrogen(H) Plutonium(Pu) Tin(Sn)
  Bromine(Br) Indium(In) Polonium(Po) Titanium(Ti)
  Cadmium(Cd) Iodine(I) Potassium(K) Tungsten(W)
  Calcium(Ca) Iridium(Ir) Praseodymium(Pr) Ununbium(Uub)
  Californium(Cf) Iron(Fe) Promethium(Pm) Ununhexium(Uuh)
  Carbon(C) Krypton(Kr) Protactinium(Pa) Ununnilium(Uun)
  Cerium(Ce) Lanthanum(La) Radium(Ra) Ununoctium(Uuo)
  Cesium(Cs) Lawrencium(Lr) Radon(Rn) Ununquadium(Uuq)
  Chlorine(Cl) Lead(Pb) Rhenium(Re) Unununium(Uuu)
  Chromium(Cr) Lithium(Li) Rhodium(Rh) Uranium(U)
  Cobalt(Co) Lutetium(Lu) Rubidium(Rb) Vanadium(V)
  Copper(Cu) Magnesium(Mg) Ruthenium(Ru) Xenon(Xe)
  Curium(Cm) Manganese(Mn) Rutherfordium(Rf) Ytterbium(Yb)
  Dubnium(Db) Meitnerium(Mt) Samarium(Sm) Yttrium(Y)
  Dysprosium(Dy) Mendelevium(Md) Scandium(Sc) Zinc(Zn)
  Einsteinium(Es) Mercury(Hg) Seaborgium(Sg) Zirconium(Zr)
  Erbium(Er) Molybdenum(Mo) Selenium(Se)


Updated Friday July 25th
Copyright Arbor Media, Inc., 2004.  All rights reserved.
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